1 Prepare the Cake Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish Prepare the cake batter according to the package instructions and bake in the prepared dish Allow the cake to cool completely before proceeding

2 Poke and Fill the Cake Using the handle of a wooden spoon, poke holes evenly across the cooled cake In separate bowls, mix the blue raspberry gelatin with 1 cup of boiling water and stir until dissolved, then add 1/2 cup cold water Repeat with the pink strawberry gelatin in a second bowl Pour the blue gelatin into half of the poked holes and the pink gelatin into the other half, allowing the colors to alternate Refrigerate for at least 1 hour to set

3 Frost and Garnish Spread the whipped topping evenly over the cake Drizzle cotton candy-flavored syrup over the frosting if using Garnish with cotton candy pieces and sprinkles just before serving

4 Serve Slice and enjoy this colorful, sweet treat Keep refrigerated until ready to serve